13 results
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... Ptosis is severe in comparison ... innervation to pupil ... #Oculomotor #Nerve ... Cranial #neurology #diagnosis
Anisocoria Evaluation Flow Chart - Differential Diagnosis
1. Check pupillary reaction to light 
2. Measure pupil size.
- Differential Diagnosis ... Anisocoria - CN III Palsy ... Anisocoria #Evaluation #Algorithm ... #Differential #Diagnosis ... #Ophthalmology
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Fixed Dilated Pupil ... - Differential Diagnosis ... Status - Consider Oculomotor ... cranial nerve) Palsy ... no neurological cause
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- Differential Diagnosis ... Algorithm Physiological ... pilocarpine • Oculomotor ... #Algorithm #Causes ... #Ophthalmology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
- Differential Diagnosis ... Algorithm Relative ... #Differential #Diagnosis ... #Algorithm #Causes ... #Ophthalmology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Disorders • CN Ill (Oculomotor ... ) Nerve Palsy ... Skew Deviation Casey ... #Localization #ophthalmology ... #differential #diagnosis
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Adie's Pupil What ... females Differential Diagnosis ... : • CN Ill Palsy ... dissociation • Other causes ... PhysicalExam #neurology #ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Algorithm Clinical ... • CN VI palsy ... large/unreactive pupil ... #Algorithm #Causes ... #Ophthalmology
Unilateral Acute Vision Loss - Differential Diagnosis Algorithm
Painful - Cornea
 • Keratopathy
Painful - No Abnormalities of
- Differential Diagnosis ... Algorithm Painful ... (fixed dilated pupil ... #Algorithm #Causes ... #Ophthalmology
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
In this case, the ... than 3mm in this case ... would suggest oculomotor ... nerve palsy. ... clinical #video #ophthalmology